Question 1175767
a) 4 hours a day: 50 * 4 = 200 dollars/day

5 days: 200 * 5 + 100 = {{{1100}}} dollars



b) 5 hours a day: 50 * 5 = 250 dollars/day

5 days: 250 * 5 + 100 = {{{1350}}} dollars



c) x hours a day: 50x dollars a day

5 days: 50x * 5 + 100 = {{{250x + 100}}} dollars